The Internet is a boon for hobbyists of all ilk. A good intensive hobby often requires parts, tools and knowledge that just aren't available in the local shopping district. The internet is the ideal vehicle for exchanging ideas and for selling hobby supplies.
HobbyTron (hobbytron.com) Based in Santa Clarita, Ca, HobbyTron carries RC vehicles and Airsoft guns.
RC Subscription (rcsubscription.com) RC technology is changing rapidly. You can keep up with the trends with a subscription that sends a box of remote control related devices and toys on a monthly basis.